Originally Posted by Baker Tuning

A dyno should be more of an individual tool and not a comparison to others.
While a dyno can be a very good tool at showing your cars progression from X wheel horsepower to Y, that is just for your car and really can never be compared to others. On which dyno can be better than another is really just how the individual shop uses it and keeps it up to date with calibrations, software upgrades, etc.